Spring-cushion tire



G ORBIN.

SPRING CUSHION TIRE.

APPLICATION FILED FEB. I9. 1920.

1,351,784. l Ptelltd Sept 7, 1.920-

l 2 SHEETS-SHEET l.

I wy/ow/LW Y G. ORBIN.

SPRING CUSHION TIRE. APP LICAT|0N FILED FEB. 19 1920.

15.351,7?, i Patented Sept. 7, 1920.

2 SHEETS-SHEET 2.

)on the` plane' of the lines UNirs YeiioneuvoRBIN, or HoBoKnN'rENNsYLvaNI-A, Assieii'oaor ONE-rural) TofcHAaLns Y:MimoN rrAYs, or rroBoKEN, rnNNsrL-vANIA.

sritrNer-ciisHIoN TIRE. l

Application-inea February 19, 1920. seriai Nd. 360,005.

To all whom it may concern.'

Be it knownthat I, 'GEORGE ken, in the county of Allegheny vState of Pennsylvania, have invented certain new and useful improvements in Spring- Cushion Tires; and I do declare the follow-A ing to be a full, clear, and exact description of the invention, suchvas will enable others skilled in the artto which it appertains to make and use the same. f'.

yThis invention relates toimprovements in spring tires and it has for its object to do entially with respectrto the wheel and thus' more effectively absorb sudden jarring of the vehicle. Also, because of this'yieldable feature of the tire'in a'circumferential Ldirec-vr tion, the life of the tire will be greatly increased, more so than ifit werefrig'id because it will yield when it strikes an obstruc-v tion.

A further object of thel invention is to generally improve upon similar devices'V by providing a new` and novel construction' which will more effectively' absorb the shocks, one lwhich is relatively light inl weight, easy to repair and comparatively inexpensiveto manufacture.

I Other objects'and advantages ofthe linvention will'be apparent. duringfthe course of the following description.V

1n the accompanying drawings forming a part of this specification and'in which like numerals are employed to designate like parts throughout the same: Y

Figure 1 isa side elevationV of a conventional vehicle wheel with my improved" Y struction, and the'tireisproperly retained spring tire in positionthereon.

Fig.V 2 is a central longitudinal sectional view thereof. I Y A .Fig.` 3 isl a transverse sectional view taken 3 3 of Figs. '1 and 2.

the liil 1 4 of Fig. 2, Y

ISpecication of Letters Patent.l :Pat'lltd RBIN, a citi- Zen of the United States, residing at Hob- Fig. 4 is a detail. sectional View taken on sept." 7,1920.

Figs. 5 and 6 are' transversesectionsr on Fig. 2. Y

vthe, pl'anes ofthe lines 5,-5, and V6.,-"6 of y hi the drilllnigisi `wherein for the purpose of illustration is shown a preferred embodimentof my invention ,thenumerall designates a vehicle whcehofgth'e usual jconstiucf tion upon which-my spring tire, designated as a whole by the numeral 2, is secured.l

My tire comprisesl asubs'tantially rectanl gular circumferentially split metal'wcasing 3 which is .provided on its outerl periphery with a rubber treadysecured in position by meansv of screws or other fastenings. The inner periphery of the casing .is equipped set forth. Secured within the casing by means of screws 7 are a plurality of transversely disposed partitions 7. which serve as abutments for one ofthe ends of jthecir.- cumferentially arranged coiled springs 8, there beinga plurality of movable metal disksor plates 9 also inthe Casing against `which ythe other ends ofthe lcoiled springs bear. yThere are four setsof these .coiled Vwith a plurality of spaced-rectangularfslots 6, the purpose of ywhich will hereinafter be springs,and while there may 4be more.Y orVV less, it 'is believed that this number'islsuflicient to obtain an effective result. Each set of springs may be determined by the circui- Alar plates 9 which are spaced from one anothervby the c'oiledsprings in one instance -andby the arcuate plates 19in the other wheel l isprevented byoppos-itely disposed plates'13 which are secured on opposite sides ofthe rimA of the wheel and are freely slidable in the sockets 11.y Telescopic movement of parts y11 and 13 is obtained by thisconimposition-on the wheel.. The parts 11, l2,

Y vand 13- eXtend through the slots 6,7which are "of avlength to extend beyond the opposite Y y ends of the sockets 11, whereby circumferentialmovement of the tire, will'be permitted Yand the shock more effectively taken up than if the tire'had an eccentric movement alone. Shocksavhich move the tire toward; i'

andvfrom the periphery of thewhecl are taken up by the plungers 12, the'movement of which isV resisted not'only by coiled springs 14 between the plates 10 and the place in the road is encountered, the inactive portionV of theV tire will move eccentrically with respect to the periphery ofthe wheel,

. and-the whole tire will,'yunder some circumstances, move circumferentially -With re-` spect to fthe `wheel, which movements will effectively takeup the shocks. I

The operation' of mywheel is as follows: Assuming that the wheel'encounters an obstruction' or unevenV place in its path. of travel and it is in the, position shown in F ig. 2,*it will be seen that the tire, which is freely movablewith respect to the wheel, will assume a position which is eccentric with respectA to the wheel. IIn so doing the load will be borne by the three lowermost plungers 12, the bottom one of which will act in such a manner as to compress the outer rubber member 515 and the coiled spring 14. Such compression of these parts will in turn compress the adjacent" coiled springs S. yIf the kshock is extremely severe, the now horizontally alinedV platesl ,13

will move downwardly untilV they engage` the lower inner wallV of the socket members 11 in which they are disposed. Such action of these parts will force the lower sections ofthe inner rubber blocks 15 down on, and compress the coiled springs 8 with which theyV co-act. In this manner the shock is absorbed. It may be stated at this point, that vboth'the inner and outer blocks 15 function to take up the shock as is clear from the foregoing description. They not only serve in this manner, but they also function to retain the circular plates 9 in proper position, that is, they prevent these plates from rocking around the ends off the plates 10 and becoming inclined with -respect to the plates 10, which is of course undesirable. Further describing the operation of my wheel, it will beseen that while the three lowermost plungers are in action, the remaining one at the top will be inactive, however, it will become active as soon tire. With bothan eccentric movement and a circumferential movement of the tire, it will be seen `thatall shocks will be effectively absorbed and easy riding assured.

A careful consideration of the foregoing description taken in connection with .the

sons familiar with such devices co'obtain a 'n clear understandingof the construction, ad-

vantages, and operation lof myl tire.- In f` Y view of this, a more lengthy -description is casing,but also by the rubber blocks l5 on opposite sidesV of the arcuate plates 1Q.4 In other words, when an obstructionV or uneven deemed unnecessary.`

It is to.. be understood, however, thatthe form of my invention herein 'shown and i .described is to be taken as a preferred form of the same, and that various minor changes 1n the shape, size, and arrangement of parts may be resorted to without departing from Ythe spirit of. the invention .or the scope of plates, plungers extending through `the slotsv and carried by said other plates, and cushion means between the last named plates and the casing. v

2. A springk tire comprising a two-part casing, having a plurality of slots formed in its inner periphery, partitions secured transversely in the casing at points between the slots, circumferentially extending coiled springs, bearing at oneV end against said partitions, plates in the casing contacting the other-'ends of the coiled springs, other plates carrying sockets, the Vopposite ends of the last named plates contacting the first named plates and the sockets extending through and beyond the slots, rectangular blocks secured in the sockets, and coiled springs betweensaid and the casing.

3. A spring tire comprising a casing having a plurality of elongated slots formed in its inner periphery at'spaced intervals, and partitions secured transversely in the casing at points between the slots, circumferentially extendingvcoiled springs, bearing at one end against the partitions, circular movable plates contacting the other ends `of the springs, arcuate plates, including integral sockets, the ends of the arcuate plates secondy named plates normally bearing against. said circularV plates to move them against the Aaction of thecircumferential coiled springs, said sockets extending through and.' beyond the slots, a plunger disposedin each socket the sides thereof being spaced-from vthe, walls of the'socket, a wheel, guide plates secured on opposite sides of the Yrim of the wheel and extending into they spaces between the l plungers and walls of the sockets, and a coiled vspring and resilient blocks between each arcuate plate andcasing.

4. A device of the CharacterY Set- :forth comprising a Wheel, a' easing Surrounding the sume, a plurality of plungers, including sockets, extending from the interior of the easing to the exterior through the inner periphery thereol and bearing on the periphery ofthe Wheel, *cushioning means in the casing with which the plungers co-aot, and plates secured on' the Wheel and slidalole into said sockets. l 10 In testimony whereof I have hereunto set my hand.

GEORGE ORBIN. 

